{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["entity destination", "instrument agency", "component whole", "entity origin"], "input": "these efforts of the crossbow-makers to decrease the friction of the bolt of the crossbow against the stock , as the bolt was driven forward by the bow-string , are traced in all mediaeval crossbows ."}
{"entity destination": [], "instrument agency": [{"subject": "bolt", "object": "crossbow"}], "component whole": [], "entity origin": []}